Lockbox for a coupler of a trailer



FIG. 1 is a perspective view of a lockbox for a coupler of a trailer;

FIGS. 2-7 are top, left side, right side, bottom, front, and back views, respectively, of the lockbox.

FIG. 8 is an exploded perspective view of the lockbox.

FIG. 9 is a perspective view of a bottom assembly of the lockbox separated from a top cover of the lockbox;

FIGS. 10-15 are top, left side, right side, bottom, front, and back views, respectively, of the separate bottom assembly; and,

FIG. 16 is a perspective view of the top cover of the lockbox separated from the bottom assembly;

FIGS. 17-22 are back, front, left side, right side, top, and bottom views, respectively, of the separate top cover. 

CLAIM The ornamental design for a lockbox for a coupler of a trailer, as shown and described. 